Correct Answer: Option B - Kottayam
Pathanamthitta: While it doesn't have a coastline, it shares borders with Tamil Nadu state.
Kottayam: It is completely landlocked, surrounded only by other Kerala districts (Idukki, Pathanamthitta, Alappuzha, and Ernakulam). It has no international borders, no state borders with other Indian states, and no coastline.
Wayanad: It shares borders with both Karnataka and Tamil Nadu states.
Idukki: It shares a border with Tamil Nadu state.
Kottayam is the only district among the options that meets all three criteria: it is completely surrounded by land, has no international or other state borders, and has no coastline. It is an entirely inland district surrounded only by other districts of Kerala.
